Here's the link for my ZRX 1200. Most recent oil change Mobil 1 20w50 V-Twin, the one before it Mobil 1 10w40 4T. Basically 5000 miles on each one, 20w50 right in the middle of grade, 4T dropped a half point below grade. Considering the 4T starts out as a very light 40 weight the relative shearing isn't all that much.
This ZRX 1200 is modified with ZZR 1200 cams, ZZR 1200 carbs and JE 12.5 to 1 compression pistons. 145 horses to the rear wheel and 87 foot pounds. TBN was great, I could have run either much longer. Shift quality didn't change for either one.https://www.bobistheoilguy.com/foru...il-1-v-twin-20w50-5065-miles#Post5183041
I am sold on Mobil 1 MC specific oils in terms of the overall product with really good additive packages (in my opinion), proven longevity, for $10 a quart at WalMart or less on eBay if you keep your eyes open.